Mitsubishi A800 FR-A860 Instruction Manual

Mitsubishi A800 FR-A860 Inverter manual cover
Pages 25
Year 2021
Language(s)
English en

Mitsubishi A800 FR-A860 Inverter Specification

The Mitsubishi A800 FR-A860 Inverter is a high-performance variable frequency drive designed for industrial applications requiring precise motor control and energy efficiency. It supports a power range from 0.4 kW to 1 MW, making it suitable for various industrial machinery and processes. The inverter operates with a voltage class of 200V to 690V, ensuring compatibility with different power systems worldwide.

The FR-A860 is equipped with advanced vector control technology, allowing it to deliver high torque and precision speed control even at low speeds. This feature is essential for applications demanding high starting torque and stable operation. The inverter incorporates Mitsubishi's latest Real Sensorless Vector Control, enhancing its capability to control induction motors and permanent magnet motors efficiently.

Designed with user-friendliness in mind, the A800 FR-A860 includes an intuitive graphical operation terminal, which facilitates easy setup and monitoring. Its built-in PLC function enables complex control processes without needing external controllers, reducing system complexity and cost. The inverter also supports various communication protocols, including Modbus, CC-Link, Profibus, and Ethernet, ensuring seamless integration into existing automation systems.

Enhanced safety features are integrated, such as Safe Torque Off (STO) and Safe Stop 1 (SS1), complying with international safety standards. These features provide reliable protection for both equipment and personnel. The inverter's robust design includes an efficient cooling system and conformal coating on electronic components, offering reliable performance in harsh environments.

Energy-saving functions are embedded, including automatic energy optimization and regenerative braking, which contribute to reduced operational costs and environmental impact. The Mitsubishi A800 FR-A860 Inverter stands out with its combination of power, flexibility, and reliability, making it a preferred choice for demanding industrial applications.

Mitsubishi A800 FR-A860 Inverter F.A.Q.

How do I perform a factory reset on the Mitsubishi A800 FR-A860 Inverter?

To perform a factory reset on the Mitsubishi A800 FR-A860 Inverter, navigate to the parameter reset menu. Set parameter Pr. 77 to "1" and execute the reset by pressing the SET key. This will restore factory default settings.

What is the procedure to troubleshoot an overcurrent fault on the A800 inverter?

To troubleshoot an overcurrent fault, first check the motor and cable connections for any shorts or improper connections. Ensure that the load is not excessive and verify the inverter's settings match the motor's specifications. If the problem persists, inspect for any mechanical binding or faults in the motor.

How can I access and change parameters on the Mitsubishi A800 inverter?

Access the parameters on the A800 inverter by pressing the PU/EXT key to switch to the parameter unit mode. Then, use the up and down arrow keys to navigate through the parameters. Press the SET key to edit a parameter, and use the up and down keys to change its value. Confirm changes by pressing SET again.

What steps should be taken to maintain the Mitsubishi A800 inverter in optimal condition?

Regular maintenance of the A800 inverter includes cleaning the cooling fans and heat sinks, checking for loose connections, and inspecting the inverter for dust and debris. Additionally, ensure that the inverter is operating within its specified temperature range and that all software is up to date.

Can the Mitsubishi A800 inverter be used in regenerative braking applications?

Yes, the Mitsubishi A800 inverter can be used in regenerative braking applications. It features a built-in regenerative braking function that can return energy to the power supply. Ensure that the inverter is configured correctly and that all necessary components are installed for regenerative operation.

What is the recommended method for connecting the Mitsubishi A800 inverter to a PLC?

To connect the Mitsubishi A800 inverter to a PLC, use the RS485 communication interface. Configure the communication parameters on both the inverter and the PLC to ensure they match. Typically, this involves setting the baud rate, data bits, stop bits, and parity.

How do I set the motor speed using the A800 inverter's keypad?

To set the motor speed using the A800 inverter's keypad, first ensure that the inverter is in PU mode. Use the up and down arrow keys to adjust the frequency displayed on the screen. Once the desired frequency is set, press the SET key to confirm and start the motor.

What should I do if the Mitsubishi A800 inverter displays an E.OHT error?

An E.OHT error indicates an overheat condition. Check that the cooling fans are operational and that the inverter is not installed in a location with insufficient ventilation. Clean any dust or debris from the heat sink and ensure that the ambient temperature is within the inverter's operating range.

How can I integrate the Mitsubishi A800 inverter into a SCADA system?

To integrate the A800 inverter into a SCADA system, use the inverter's built-in communication protocols such as Modbus RTU or Ethernet. Configure the communication settings in the inverter's parameters to match those of the SCADA system, ensuring proper data exchange.

Is it possible to use the Mitsubishi A800 inverter with different motor types?

Yes, the Mitsubishi A800 inverter can be configured to work with various motor types, including induction motors and permanent magnet motors. Make sure to set the appropriate motor parameters in the inverter's configuration to match the specific motor type being used.